﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Enum
{
   public class BaseClass
    {
        //我们定义一个枚举类型
      

    }
    [Flags]
    public enum BorderSide
    {
        left,
        right,
        top,
        bottom
    }
}
